Search a number
-
+
136263025 = 522926481
BaseRepresentation
bin10000001111100…
…11010101110001
3100111101212201201
420013303111301
5234340404100
621304331201
73243134203
oct1007632561
9314355651
10136263025
116aa0a478
1239773b01
13222cc412
1414150773
15be6936a
hex81f3571

136263025 has 18 divisors (see below), whose sum is σ = 175020482. Its totient is φ = 105235200.

The previous prime is 136262989. The next prime is 136263067. The reversal of 136263025 is 520362631.

136263025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 9 ways, for example, as 7054336 + 129208689 = 2656^2 + 11367^2 .

It is not a de Polignac number, because 136263025 - 211 = 136260977 is a prime.

It is a super-2 number, since 2×1362630252 = 37135223964301250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136262984 and 136263002.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 17785 + ... + 24265.

Almost surely, 2136263025 is an apocalyptic number.

It is an amenable number.

136263025 is a deficient number, since it is larger than the sum of its proper divisors (38757457).

136263025 is an equidigital number, since it uses as much as digits as its factorization.

136263025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6549 (or 6515 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 136263025 is about 11673.1754462957. The cubic root of 136263025 is about 514.5876298038.

The spelling of 136263025 in words is "one hundred thirty-six million, two hundred sixty-three thousand, twenty-five".

Divisors: 1 5 25 29 145 725 841 4205 6481 21025 32405 162025 187949 939745 4698725 5450521 27252605 136263025